Heart attack or myocardial infarction

A heart attack happens when one or more of the arteries that supplies your heart becomes blocked. This means that the muscles in your heart aren’t able to get all the oxygen they need. The longer the artery is blocked, the more dangerous the situation becomes.

Go to the hospital or call 911 right way if you think you might be having a heart attack.

Signs and symptoms of a heart attack

  • Pain, pressure, or discomfort over your chest
  • Sudden pain or tingling over your arms, back, neck, jaw, or stomach
  • Shortness of breath or difficulty breathing
  • Nausea or vomiting
  • Sweating or cold, clammy skin
  • Feeling dizzy or lightheaded

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